Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10854396 | Packaging material for electrochemical cells | Kazuhiko Yokota, Rikiya Yamashita | 2020-12-01 |
| 9879346 | Chromium-and-fluorine-free chemical conversion treatment solution for metal surfaces, metal surface treatment method, and metal surface coating method | Takahiro KODAMA, Noriaki Kobayashi | 2018-01-30 |
| 8535456 | Chemical conversion treatment solution for a steel material and chemical conversion treatment method | Hitoshi Ishii | 2013-09-17 |
| 8318256 | Metallic material and method of manufacturing the same | Hitoshi Ishii, Ryosuke Kawagoshi | 2012-11-27 |
| 6723178 | Process for forming a phosphate conversion coating on metal | Hirokatsu Bannai, Takaomi Nakayama | 2004-04-20 |
| 6478860 | Conditioning metal surfaces before phosphating them | Takaomi Nakayama, Kensuke Shimoda, Hirokastu Bannai | 2002-11-12 |
| 6231688 | Composition and process for zinc phosphate conversion coating | Hitoshi Ishii | 2001-05-15 |
| 6214132 | Conditioning metal surfaces prior to phosphate conversion coating | Takaomi Nakayama, Kensuke Shimoda | 2001-04-10 |
| 6180177 | Surface treatment composition for metallic material and method for treatment | Hiroki Hayashi | 2001-01-30 |
| 5932292 | Zinc phosphate conversion coating composition and process | Hitoshi Ishii | 1999-08-03 |
| 5888315 | Composition and process for forming an underpaint coating on metals | Hitoshi Ishii | 1999-03-30 |